<!DOCTYPE html>
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

		<title>纯CSS3纸飞机飞行404动画特效 - 站长素材</title>

		<style>
			*,
			*:after,
			*:before {
				box-sizing: border-box;
			}

			body {
				padding: 0;
				margin: 0;
			}

			.container {
				position: absolute;
				top: 0;
				left: 0;
				width: 100%;
				height: 100vh;
				overflow: hidden;
			}

			.container-star {
				background-image: linear-gradient(to bottom, #292256 0%, #8446cf 70%, #a871d6 100%);
			}

			.container-star:after {
				background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 40%, rgba(15, 10, 38, 0.2) 100%);
				content: "";
				width: 100%;
				height: 100%;
				position: absolute;
				top: 0;
			}

			.star-1 {
				position: absolute;
				border-radius: 50%;
				background-color: #ffffff;
				-webkit-animation: twinkle 5s infinite ease-in-out;
				animation: twinkle 5s infinite ease-in-out;
			}

			.star-1:after {
				height: 100%;
				width: 100%;
				-webkit-transform: rotate(90deg);
				transform: rotate(90deg);
				content: "";
				position: absolute;
				background-color: #fff;
				border-radius: 50%;
			}

			.star-1:before {
				background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 60%, rgba(255, 255, 255, 0) 100%);
				position: absolute;
				border-radius: 50%;
				content: "";
				top: -20%;
				left: -50%;
			}

			.star-1:nth-of-type(1) {
				top: 78vh;
				left: 44vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(1):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(2) {
				top: 94vh;
				left: 67vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-1:nth-of-type(2):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(3) {
				top: 41vh;
				left: 66vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-1:nth-of-type(3):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(4) {
				top: 72vh;
				left: 77vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-1:nth-of-type(4):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(5) {
				top: 14vh;
				left: 68vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(5):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(6) {
				top: 26vh;
				left: 79vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(6):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(7) {
				top: 28vh;
				left: 84vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-1:nth-of-type(7):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(8) {
				top: 42vh;
				left: 28vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-1:nth-of-type(8):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(9) {
				top: 7vh;
				left: 99vw;
				width: 7px;
				height: 2.3333333333px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-1:nth-of-type(9):before {
				width: 14px;
				height: 14px;
				top: -250%;
			}

			.star-1:nth-of-type(10) {
				top: 97vh;
				left: 76vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-1:nth-of-type(10):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(11) {
				top: 76vh;
				left: 89vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(11):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(12) {
				top: 16vh;
				left: 92vw;
				width: 8px;
				height: 2.6666666667px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-1:nth-of-type(12):before {
				width: 16px;
				height: 16px;
				top: -250%;
			}

			.star-1:nth-of-type(13) {
				top: 78vh;
				left: 33vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(13):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(14) {
				top: 12vh;
				left: 67vw;
				width: 7px;
				height: 2.3333333333px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(14):before {
				width: 14px;
				height: 14px;
				top: -250%;
			}

			.star-1:nth-of-type(15) {
				top: 64vh;
				left: 51vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(15):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(16) {
				top: 71vh;
				left: 95vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(16):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(17) {
				top: 56vh;
				left: 31vw;
				width: 7px;
				height: 2.3333333333px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-1:nth-of-type(17):before {
				width: 14px;
				height: 14px;
				top: -250%;
			}

			.star-1:nth-of-type(18) {
				top: 33vh;
				left: 80vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(18):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(19) {
				top: 30vh;
				left: 14vw;
				width: 8px;
				height: 2.6666666667px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(19):before {
				width: 16px;
				height: 16px;
				top: -250%;
			}

			.star-1:nth-of-type(20) {
				top: 53vh;
				left: 43vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-1:nth-of-type(20):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(21) {
				top: 32vh;
				left: 9vw;
				width: 7px;
				height: 2.3333333333px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-1:nth-of-type(21):before {
				width: 14px;
				height: 14px;
				top: -250%;
			}

			.star-1:nth-of-type(22) {
				top: 97vh;
				left: 9vw;
				width: 5px;
				height: 1.6666666667px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-1:nth-of-type(22):before {
				width: 10px;
				height: 10px;
				top: -250%;
			}

			.star-1:nth-of-type(23) {
				top: 62vh;
				left: 6vw;
				width: 5px;
				height: 1.6666666667px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(23):before {
				width: 10px;
				height: 10px;
				top: -250%;
			}

			.star-1:nth-of-type(24) {
				top: 57vh;
				left: 13vw;
				width: 9px;
				height: 3px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-1:nth-of-type(24):before {
				width: 18px;
				height: 18px;
				top: -250%;
			}

			.star-1:nth-of-type(25) {
				top: 52vh;
				left: 60vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(25):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(26) {
				top: 5vh;
				left: 84vw;
				width: 5px;
				height: 1.6666666667px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-1:nth-of-type(26):before {
				width: 10px;
				height: 10px;
				top: -250%;
			}

			.star-1:nth-of-type(27) {
				top: 26vh;
				left: 23vw;
				width: 8px;
				height: 2.6666666667px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(27):before {
				width: 16px;
				height: 16px;
				top: -250%;
			}

			.star-1:nth-of-type(28) {
				top: 34vh;
				left: 3vw;
				width: 4px;
				height: 1.3333333333px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(28):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-1:nth-of-type(29) {
				top: 40vh;
				left: 58vw;
				width: 6px;
				height: 2px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-1:nth-of-type(29):before {
				width: 12px;
				height: 12px;
				top: -250%;
			}

			.star-1:nth-of-type(30) {
				top: 17vh;
				left: 55vw;
				width: 5px;
				height: 1.6666666667px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-1:nth-of-type(30):before {
				width: 10px;
				height: 10px;
				top: -250%;
			}

			.star-2 {
				position: absolute;
				border-radius: 50%;
				background-color: #ffffff;
				-webkit-animation: twinkle 5s infinite ease-in-out;
				animation: twinkle 5s infinite ease-in-out;
			}

			.star-2:nth-of-type(31) {
				top: 70vh;
				left: 96vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(31):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(32) {
				top: 88vh;
				left: 57vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-2:nth-of-type(32):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(33) {
				top: 59vh;
				left: 48vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(33):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(34) {
				top: 2vh;
				left: 83vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(34):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(35) {
				top: 8vh;
				left: 75vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(35):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(36) {
				top: 78vh;
				left: 8vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-2:nth-of-type(36):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(37) {
				top: 72vh;
				left: 98vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(37):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(38) {
				top: 34vh;
				left: 41vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-2:nth-of-type(38):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(39) {
				top: 13vh;
				left: 5vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(39):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(40) {
				top: 5vh;
				left: 86vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-2:nth-of-type(40):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(41) {
				top: 7vh;
				left: 62vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(41):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(42) {
				top: 36vh;
				left: 44vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(42):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(43) {
				top: 74vh;
				left: 47vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-2:nth-of-type(43):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(44) {
				top: 72vh;
				left: 86vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-2:nth-of-type(44):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(45) {
				top: 26vh;
				left: 40vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(45):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(46) {
				top: 41vh;
				left: 39vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(46):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(47) {
				top: 16vh;
				left: 36vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-2:nth-of-type(47):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(48) {
				top: 96vh;
				left: 37vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(48):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(49) {
				top: 18vh;
				left: 8vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-2:nth-of-type(49):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(50) {
				top: 56vh;
				left: 31vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 4s;
				animation-delay: 4s;
			}

			.star-2:nth-of-type(50):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(51) {
				top: 24vh;
				left: 69vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(51):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(52) {
				top: 52vh;
				left: 17vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(52):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(53) {
				top: 35vh;
				left: 59vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(53):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(54) {
				top: 46vh;
				left: 73vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(54):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(55) {
				top: 38vh;
				left: 35vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-2:nth-of-type(55):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(56) {
				top: 34vh;
				left: 66vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 2s;
				animation-delay: 2s;
			}

			.star-2:nth-of-type(56):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(57) {
				top: 80vh;
				left: 76vw;
				width: 3px;
				height: 3px;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.star-2:nth-of-type(57):before {
				width: 6px;
				height: 6px;
				top: -250%;
			}

			.star-2:nth-of-type(58) {
				top: 45vh;
				left: 49vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(58):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.star-2:nth-of-type(59) {
				top: 8vh;
				left: 4vw;
				width: 4px;
				height: 4px;
				-webkit-animation-delay: 1s;
				animation-delay: 1s;
			}

			.star-2:nth-of-type(59):before {
				width: 8px;
				height: 8px;
				top: -250%;
			}

			.star-2:nth-of-type(60) {
				top: 71vh;
				left: 93vw;
				width: 2px;
				height: 2px;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
			}

			.star-2:nth-of-type(60):before {
				width: 4px;
				height: 4px;
				top: -250%;
			}

			.container-title {
				width: 600px;
				height: 450px;
				left: 50%;
				top: 50%;
				-webkit-transform: translate(-50%, -50%);
				transform: translate(-50%, -50%);
				position: absolute;
				color: white;
				line-height: 1;
				font-weight: 700;
				text-align: center;
				justify-content: center;
				align-items: center;
				flex-direction: column;
				display: flex;
			}

			.title>* {
				display: inline-block;
				font-size: 200px;
			}

			.number {
				text-shadow: 20px 20px 20px rgba(0, 0, 0, 0.2);
				padding: 0 0.2em;
				font-family: 'Russo One', sans-serif;
			}

			.subtitle {
				font-size: 25px;
				margin-top: 1.5em;
				font-family: "Lato", sans-serif;
				text-shadow: 4px 4px 4px rgba(0, 0, 0, 0.2);
			}

			button {
				font-size: 22px;
				margin-top: 1.5em;
				padding: 0.5em 1em;
				letter-spacing: 1px;
				font-family: "Lato", sans-serif;
				color: white;
				background-color: transparent;
				border: 0;
				cursor: pointer;
				z-index: 999;
				border: 2px solid white;
				border-radius: 5px;
				text-shadow: 4px 4px 4px rgba(0, 0, 0, 0.2);
				transition: opacity 0.2s ease;
			}

			button:hover {
				opacity: 0.7;
			}

			button:focus {
				outline: 0;
			}

			.moon {
				position: relative;
				border-radius: 50%;
				width: 160px;
				height: 160px;
				z-index: 2;
				background-color: #fff;
				box-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 30px #fff, 0 0 40px #fff, 0 0 70px #fff, 0 0 80px #fff, 0 0 100px #ff1177;
				-webkit-animation: rotate 5s ease-in-out infinite;
				animation: rotate 5s ease-in-out infinite;
			}

			.moon .face {
				top: 60%;
				left: 47%;
				position: absolute;
			}

			.moon .face .mouth {
				border-top-left-radius: 50%;
				border-bottom-right-radius: 50%;
				border-top-right-radius: 50%;
				background-color: #5c3191;
				width: 25px;
				height: 25px;
				position: absolute;
				-webkit-animation: snore 5s ease-in-out infinite;
				animation: snore 5s ease-in-out infinite;
				-webkit-transform: rotate(45deg);
				transform: rotate(45deg);
				box-shadow: inset -4px -4px 4px rgba(0, 0, 0, 0.3);
			}

			.moon .face .eyes {
				position: absolute;
				top: -30px;
				left: -30px;
			}

			.moon .face .eyes .eye-left,
			.moon .face .eyes .eye-right {
				border: 4px solid #5c3191;
				width: 30px;
				height: 15px;
				border-bottom-left-radius: 100px;
				border-bottom-right-radius: 100px;
				border-top: 0;
				position: absolute;
			}

			.moon .face .eyes .eye-left:before,
			.moon .face .eyes .eye-left:after,
			.moon .face .eyes .eye-right:before,
			.moon .face .eyes .eye-right:after {
				content: "";
				position: absolute;
				border-radius: 50%;
				width: 4px;
				height: 4px;
				background-color: #5c3191;
				top: -2px;
				left: -4px;
			}

			.moon .face .eyes .eye-left:after,
			.moon .face .eyes .eye-right:after {
				left: auto;
				right: -4px;
			}

			.moon .face .eyes .eye-right {
				left: 50px;
			}

			.container-bird {
				-webkit-perspective: 2000px;
				perspective: 2000px;
				width: 100%;
				height: 100%;
				position: absolute;
				top: 0;
				left: 0;
				bottom: 0;
				right: 0;
			}

			.bird {
				position: absolute;
				z-index: 1000;
				left: 50%;
				top: 50%;
				height: 40px;
				width: 50px;
				-webkit-transform: translate3d(-100vw, 0, 0) rotateY(90deg);
				transform: translate3d(-100vw, 0, 0) rotateY(90deg);
				-webkit-transform-style: preserve-3d;
				transform-style: preserve-3d;
			}

			.bird-container {
				left: 0;
				top: 0;
				width: 100%;
				height: 100%;
				-webkit-transform-style: preserve-3d;
				transform-style: preserve-3d;
				-webkit-transform: translate3d(50px, 30px, -300px);
				transform: translate3d(50px, 30px, -300px);
			}

			.wing {
				position: absolute;
				left: 0;
				top: 0;
				right: 0;
				bottom: 0;
				border-radius: 3px;
				-webkit-transform-style: preserve-3d;
				transform-style: preserve-3d;
				-webkit-transform-origin: center bottom;
				transform-origin: center bottom;
				z-index: 300;
			}

			.wing-left {
				background: linear-gradient(to bottom, #a58dc4 0%, #7979a8 100%);
				-webkit-transform: translate3d(0, 0, 0) rotateX(-30deg);
				transform: translate3d(0, 0, 0) rotateX(-30deg);
				-webkit-animation: wingLeft 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
				animation: wingLeft 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
			}

			.wing-right {
				background: linear-gradient(to bottom, #d9d3e2 0%, #b8a5d1 100%);
				-webkit-transform: translate3d(0, 0, 0) rotateX(-30deg);
				transform: translate3d(0, 0, 0) rotateX(-30deg);
				-webkit-animation: wingRight 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
				animation: wingRight 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
			}

			.wing-right-top,
			.wing-left-top {
				border-right: 25px solid transparent;
				border-left: 25px solid transparent;
				top: -20px;
				width: 100%;
				position: absolute;
				-webkit-transform-origin: 100% 100%;
				transform-origin: 100% 100%;
			}

			.wing-right-top {
				border-bottom: 20px solid #b8a5d1;
				-webkit-transform: translate3d(0, 0, 0) rotateX(60deg);
				transform: translate3d(0, 0, 0) rotateX(60deg);
				-webkit-animation: wingRightTop 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
				animation: wingRightTop 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
			}

			.wing-left-top {
				border-bottom: 20px solid #7979a8;
				-webkit-transform: translate3d(0, 0, 0) rotateX(-60deg);
				transform: translate3d(0, 0, 0) rotateX(-60deg);
				-webkit-animation: wingLeftTop 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
				animation: wingLeftTop 1.3s cubic-bezier(0.45, 0, 0.5, 0.95) infinite;
			}

			.bird-anim:nth-child(1) {
				-webkit-animation: bird1 30s linear infinite forwards;
				animation: bird1 30s linear infinite forwards;
			}

			.bird-anim:nth-child(2) {
				-webkit-animation: bird2 30s linear infinite forwards;
				animation: bird2 30s linear infinite forwards;
				-webkit-animation-delay: 3s;
				animation-delay: 3s;
				z-index: -1;
			}

			.bird-anim:nth-child(3) {
				-webkit-animation: bird3 30s linear infinite forwards;
				animation: bird3 30s linear infinite forwards;
				-webkit-animation-delay: 5s;
				animation-delay: 5s;
			}

			.bird-anim:nth-child(4) {
				-webkit-animation: bird4 30s linear infinite forwards;
				animation: bird4 30s linear infinite forwards;
				-webkit-animation-delay: 7s;
				animation-delay: 7s;
			}

			.bird-anim:nth-child(5) {
				-webkit-animation: bird5 30s linear infinite forwards;
				animation: bird5 30s linear infinite forwards;
				-webkit-animation-delay: 14s;
				animation-delay: 14s;
			}

			.bird-anim:nth-child(6) {
				-webkit-animation: bird6 30s linear infinite forwards;
				animation: bird6 30s linear infinite forwards;
				-webkit-animation-delay: 10s;
				animation-delay: 10s;
				z-index: -1;
			}

			@-webkit-keyframes rotate {

				0%,
				100% {
					-webkit-transform: rotate(-8deg);
					transform: rotate(-8deg);
				}

				50% {
					-webkit-transform: rotate(0deg);
					transform: rotate(0deg);
				}
			}

			@keyframes rotate {

				0%,
				100% {
					-webkit-transform: rotate(-8deg);
					transform: rotate(-8deg);
				}

				50% {
					-webkit-transform: rotate(0deg);
					transform: rotate(0deg);
				}
			}

			@-webkit-keyframes snore {

				0%,
				100% {
					-webkit-transform: scale(1) rotate(30deg);
					transform: scale(1) rotate(30deg);
				}

				50% {
					-webkit-transform: scale(0.5) rotate(30deg);
					transform: scale(0.5) rotate(30deg);
					border-bottom-left-radius: 50%;
				}
			}

			@keyframes snore {

				0%,
				100% {
					-webkit-transform: scale(1) rotate(30deg);
					transform: scale(1) rotate(30deg);
				}

				50% {
					-webkit-transform: scale(0.5) rotate(30deg);
					transform: scale(0.5) rotate(30deg);
					border-bottom-left-radius: 50%;
				}
			}

			@-webkit-keyframes twinkle {

				0%,
				100% {
					opacity: 0.7;
				}

				50% {
					opacity: 0.3;
				}
			}

			@keyframes twinkle {

				0%,
				100% {
					opacity: 0.7;
				}

				50% {
					opacity: 0.3;
				}
			}

			@-webkit-keyframes wingLeft {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(-50deg);
					transform: translate3d(0, 0, 0) rotateX(-50deg);
				}

				50% {
					-webkit-transform: translate3d(0, -20px, 0) rotateX(-130deg);
					transform: translate3d(0, -20px, 0) rotateX(-130deg);
					background: linear-gradient(to bottom, #d9d3e2 0%, #b8a5d1 100%);
				}
			}

			@keyframes wingLeft {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(-50deg);
					transform: translate3d(0, 0, 0) rotateX(-50deg);
				}

				50% {
					-webkit-transform: translate3d(0, -20px, 0) rotateX(-130deg);
					transform: translate3d(0, -20px, 0) rotateX(-130deg);
					background: linear-gradient(to bottom, #d9d3e2 0%, #b8a5d1 100%);
				}
			}

			@-webkit-keyframes wingLeftTop {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(-10deg);
					transform: translate3d(0, 0, 0) rotateX(-10deg);
				}

				50% {
					-webkit-transform: translate3d(0px, 0px, 0) rotateX(-40deg);
					transform: translate3d(0px, 0px, 0) rotateX(-40deg);
					border-bottom: 20px solid #b8a5d1;
				}
			}

			@keyframes wingLeftTop {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(-10deg);
					transform: translate3d(0, 0, 0) rotateX(-10deg);
				}

				50% {
					-webkit-transform: translate3d(0px, 0px, 0) rotateX(-40deg);
					transform: translate3d(0px, 0px, 0) rotateX(-40deg);
					border-bottom: 20px solid #b8a5d1;
				}
			}

			@-webkit-keyframes wingRight {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(50deg);
					transform: translate3d(0, 0, 0) rotateX(50deg);
				}

				50% {
					-webkit-transform: translate3d(0, -20px, 0) rotateX(130deg);
					transform: translate3d(0, -20px, 0) rotateX(130deg);
					background: linear-gradient(to bottom, #a58dc4 0%, #7979a8 100%);
				}
			}

			@keyframes wingRight {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(50deg);
					transform: translate3d(0, 0, 0) rotateX(50deg);
				}

				50% {
					-webkit-transform: translate3d(0, -20px, 0) rotateX(130deg);
					transform: translate3d(0, -20px, 0) rotateX(130deg);
					background: linear-gradient(to bottom, #a58dc4 0%, #7979a8 100%);
				}
			}

			@-webkit-keyframes wingRightTop {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(10deg);
					transform: translate3d(0, 0, 0) rotateX(10deg);
				}

				50% {
					-webkit-transform: translate3d(0px, 0px, 0px) rotateX(40deg);
					transform: translate3d(0px, 0px, 0px) rotateX(40deg);
					border-bottom: 20px solid #7979a8;
				}
			}

			@keyframes wingRightTop {

				0%,
				100% {
					-webkit-transform: translate3d(0, 0, 0) rotateX(10deg);
					transform: translate3d(0, 0, 0) rotateX(10deg);
				}

				50% {
					-webkit-transform: translate3d(0px, 0px, 0px) rotateX(40deg);
					transform: translate3d(0px, 0px, 0px) rotateX(40deg);
					border-bottom: 20px solid #7979a8;
				}
			}

			@-webkit-keyframes bird1 {
				0% {
					-webkit-transform: translate3d(-120vw, -20px, -1000px) rotateY(-40deg) rotateX(0deg);
					transform: translate3d(-120vw, -20px, -1000px) rotateY(-40deg) rotateX(0deg);
				}

				100% {
					-webkit-transform: translate3d(100vw, -40vh, 1000px) rotateY(-40deg) rotateX(0deg);
					transform: translate3d(100vw, -40vh, 1000px) rotateY(-40deg) rotateX(0deg);
				}
			}

			@keyframes bird1 {
				0% {
					-webkit-transform: translate3d(-120vw, -20px, -1000px) rotateY(-40deg) rotateX(0deg);
					transform: translate3d(-120vw, -20px, -1000px) rotateY(-40deg) rotateX(0deg);
				}

				100% {
					-webkit-transform: translate3d(100vw, -40vh, 1000px) rotateY(-40deg) rotateX(0deg);
					transform: translate3d(100vw, -40vh, 1000px) rotateY(-40deg) rotateX(0deg);
				}
			}

			@-webkit-keyframes bird2 {

				0%,
				15% {
					-webkit-transform: translate3d(100vw, -300px, -1000px) rotateY(10deg) rotateX(0deg);
					transform: translate3d(100vw, -300px, -1000px) rotateY(10deg) rotateX(0deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -20px, -1000px) rotateY(10deg) rotateX(0deg);
					transform: translate3d(-100vw, -20px, -1000px) rotateY(10deg) rotateX(0deg);
				}
			}

			@keyframes bird2 {

				0%,
				15% {
					-webkit-transform: translate3d(100vw, -300px, -1000px) rotateY(10deg) rotateX(0deg);
					transform: translate3d(100vw, -300px, -1000px) rotateY(10deg) rotateX(0deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -20px, -1000px) rotateY(10deg) rotateX(0deg);
					transform: translate3d(-100vw, -20px, -1000px) rotateY(10deg) rotateX(0deg);
				}
			}

			@-webkit-keyframes bird3 {
				0% {
					-webkit-transform: translate3d(100vw, -50vh, 100px) rotateY(-5deg) rotateX(-20deg);
					transform: translate3d(100vw, -50vh, 100px) rotateY(-5deg) rotateX(-20deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -10vh, 100px) rotateY(-5deg) rotateX(-20deg);
					transform: translate3d(-100vw, -10vh, 100px) rotateY(-5deg) rotateX(-20deg);
				}
			}

			@keyframes bird3 {
				0% {
					-webkit-transform: translate3d(100vw, -50vh, 100px) rotateY(-5deg) rotateX(-20deg);
					transform: translate3d(100vw, -50vh, 100px) rotateY(-5deg) rotateX(-20deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -10vh, 100px) rotateY(-5deg) rotateX(-20deg);
					transform: translate3d(-100vw, -10vh, 100px) rotateY(-5deg) rotateX(-20deg);
				}
			}

			@-webkit-keyframes bird4 {
				0% {
					-webkit-transform: translate3d(100vw, 30vh, 200px) rotateY(-5deg) rotateX(10deg);
					transform: translate3d(100vw, 30vh, 200px) rotateY(-5deg) rotateX(10deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -30vh, 200px) rotateY(-5deg) rotateX(10deg);
					transform: translate3d(-100vw, -30vh, 200px) rotateY(-5deg) rotateX(10deg);
				}
			}

			@keyframes bird4 {
				0% {
					-webkit-transform: translate3d(100vw, 30vh, 200px) rotateY(-5deg) rotateX(10deg);
					transform: translate3d(100vw, 30vh, 200px) rotateY(-5deg) rotateX(10deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, -30vh, 200px) rotateY(-5deg) rotateX(10deg);
					transform: translate3d(-100vw, -30vh, 200px) rotateY(-5deg) rotateX(10deg);
				}
			}

			@-webkit-keyframes bird5 {

				0%,
				5% {
					-webkit-transform: translate3d(100vw, 30vh, 400px) rotateY(-15deg) rotateX(-10deg);
					transform: translate3d(100vw, 30vh, 400px) rotateY(-15deg) rotateX(-10deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, 10vh, 400px) rotateY(-15deg) rotateX(-10deg);
					transform: translate3d(-100vw, 10vh, 400px) rotateY(-15deg) rotateX(-10deg);
				}
			}

			@keyframes bird5 {

				0%,
				5% {
					-webkit-transform: translate3d(100vw, 30vh, 400px) rotateY(-15deg) rotateX(-10deg);
					transform: translate3d(100vw, 30vh, 400px) rotateY(-15deg) rotateX(-10deg);
				}

				100% {
					-webkit-transform: translate3d(-100vw, 10vh, 400px) rotateY(-15deg) rotateX(-10deg);
					transform: translate3d(-100vw, 10vh, 400px) rotateY(-15deg) rotateX(-10deg);
				}
			}

			@-webkit-keyframes bird6 {

				0%,
				10% {
					-webkit-transform: translate3d(-100vw, 20vh, -500px) rotateY(15deg) rotateX(10deg);
					transform: translate3d(-100vw, 20vh, -500px) rotateY(15deg) rotateX(10deg);
				}

				100% {
					-webkit-transform: translate3d(100vw, 40vh, -800px) rotateY(5deg) rotateX(10deg);
					transform: translate3d(100vw, 40vh, -800px) rotateY(5deg) rotateX(10deg);
				}
			}

			@keyframes bird6 {

				0%,
				10% {
					-webkit-transform: translate3d(-100vw, 20vh, -500px) rotateY(15deg) rotateX(10deg);
					transform: translate3d(-100vw, 20vh, -500px) rotateY(15deg) rotateX(10deg);
				}

				100% {
					-webkit-transform: translate3d(100vw, 40vh, -800px) rotateY(5deg) rotateX(10deg);
					transform: translate3d(100vw, 40vh, -800px) rotateY(5deg) rotateX(10deg);
				}
			}

			@media screen and (max-width: 580px) {
				.container-404 {
					width: 100%;
				}

				.number {
					font-size: 100px;
				}

				.subtitle {
					font-size: 20px;
					padding: 0 1em;
				}

				.moon {
					width: 100px;
					height: 100px;
				}

				.face {
					-webkit-transform: scale(0.7);
					transform: scale(0.7);
				}
			}
		</style>

	</head>
	<body>

		<div class="container container-star">
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-1"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
			<div class="star-2"></div>
		</div>
		<div class="container container-bird">
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="bird bird-anim">
				<div class="bird-container">
					<div class="wing wing-left">
						<div class="wing-left-top"></div>
					</div>
					<div class="wing wing-right">
						<div class="wing-right-top"></div>
					</div>
				</div>
			</div>
			<div class="container-title">
				<div class="title">
					<div class="number">4</div>
					<div class="moon">
						<div class="face">
							<div class="mouth"></div>
							<div class="eyes">
								<div class="eye-left"></div>
								<div class="eye-right"></div>
							</div>
						</div>
					</div>
					<div class="number">4</div>
				</div>
				<div class="subtitle">哎呀。看来你拐错弯了。</div>
				<button>返回</button>
			</div>
		</div>

	</body>
</html>
